OIL-SEALED ROTARY PISTON PUMPS/COMBINATIONS GLS 250-500 Series and Combinations • Robust cast and ductile iron construction provides rugged reliable operation. • Efficient design provides maximum uptime with minimal moving parts and large clearance. • Low ultimate blank-off with pressures down to < 10-2 Torr. • New valve design virtually eliminates valve maintenance and noise. • Space saving design which saves up to 50% of valuable floor space. • Complete and self-contained unit delivered ready to install. • Automatic lubrication system provides proper flow of oil to bearings and sealing surfaces and prevents back flow into system. • Controlled balancing reduces vibration to a practical minimum. • Gas ballast as standard. • Total capability includes the manufacturing and service capabilities to keep your equipment in top operation with a broad range of vacuum system accessories. APPLICATIONS • Automotive • Chemical processing • General applications • Heat treatment • Leak detection • Metallurgy • PET processing • Pharmaceuticals • Transformer drying and cable fluid conditioning • Vacuum coating • Vacuum melting With over 10,000 units sold in 80 years, the Atlas Copco GLS rotary piston pump sets the standard for performance and reliability as the industry’s most efficient, space-saving design. As part of the Atlas Copco group, Stokes Vacuum continues to innovate oil-lubricated rotary piston pumps. The GLS has been improved, upgraded and fine-tuned. It delivers even better dependability and productivity combined with minimal maintenance and process downtime, especially crucial in demanding applications such as the automotive or aerospace industry and their supply chains. FEATURES AND BENEFITS
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OIL-SEALED ROTARY PISTON PUMPS/COMBINATIONS GLS 250-500 Series and Combinations
• Robust cast and ductile iron construction provides
rugged reliable operation.
• Efficient design provides maximum uptime with
minimal moving parts and large clearance.
• Low ultimate blank-off with pressures down to < 10-2 Torr.
• New valve design virtually eliminates valve
maintenance and noise.
• Space saving design which saves up to 50%
of valuable floor space.
• Complete and self-contained unit delivered
ready to install.
• Automatic lubrication system provides proper flow
of oil to bearings and sealing surfaces and prevents
back flow into system.
• Controlled balancing reduces vibration
to a practical minimum.
• Gas ballast as standard.
• Total capability includes the manufacturing and service
capabilities to keep your equipment in top operation
with a broad range of vacuum system accessories.
APPLICATIONS• Automotive
• Chemical processing
• General applications
• Heat treatment
• Leak detection
• Metallurgy
• PET processing
• Pharmaceuticals
• Transformer drying and cable fluid conditioning
• Vacuum coating
• Vacuum melting
With over 10,000 units sold in 80 years, the Atlas Copco GLS rotary piston pump sets the standard for
performance and reliability as the industry’s most efficient, space-saving design. As part of the Atlas Copco
group, Stokes Vacuum continues to innovate oil-lubricated rotary piston pumps. The GLS has been improved,
upgraded and fine-tuned. It delivers even better dependability and productivity combined with minimal
maintenance and process downtime, especially crucial in demanding applications such as the automotive
or aerospace industry and their supply chains.
FEATURES AND BENEFITS
Low lifecycle costThanks to the slow rotational speed, reliability is optimum and lifecycle cost is low.
Reduced maintenanceAll GLS pumps are fitted with a water mizer to minimize the water consumption and optimize
the running temperature. This brings extra reliability, extended times between maintenance
and a very low lifecycle cost.
Reliable system protection To allow pumping of high vapor loads, an integral gas ballast is fitted. This is used to prevent
condensation of the vapor carried by the pump gases.
State-of-the-art control Lubrication of the internal components of the pumps is completely automatic. This pump is fitted
with a 230/460 V coil for control of the oil solenoid valve which prevents the pump from flooding
with oil in the case of power failure or a loss of vacuum.
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* Pneurop 6602
TECHNICAL SPECIFICATIONS GLS SERIES AND COMBINATIONS (50/60 HZ)